1) After select all the order, tap membership to apply membership point. when you tap on membership, membership modal will come up.

2) Put membership number or mobile number then tap search button to search existing customer.
3) Choose right customer from the list. List will show membership number, customer name and points they have. Double check customer name before select. Tap blue tick button to apply.

4) After apply membership, customer's currently available points will be appeared on point section.